| List<? extends VariableInstanceLog> | AuditService. findVariableInstances(long processInstanceId) | Returns all variable logs for given process instance id | 
| List<? extends VariableInstanceLog> | AuditService. findVariableInstances(long processInstanceId,
                     String variableId) | Returns all variable logs for given process instance id and variable identifier | 
| List<? extends VariableInstanceLog> | AuditService. findVariableInstancesByName(String variableId,
                           boolean onlyActiveProcesses) | Returns all variable logs that are identified by variable id regardless of what process instance they belong to | 
| List<? extends VariableInstanceLog> | AuditService. findVariableInstancesByNameAndValue(String variableId,
                                   String value,
                                   boolean onlyActiveProcesses) | Returns all variable logs that are identified by variable id and has given value
 regardless of what process instance they belong to |